<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>员工列表</title>
<%
	pageContext.setAttribute("APP_PATH", request.getContextPath());
%>
<script type="text/javascript"
	src="${APP_PATH }/static/js/jquery-3.4.1.min.js"></script>
<link
	href="${APP_PATH }/static/bootstrap-3.3.7-dist/css/bootstrap.min.css"
	rel="stylesheet">
<script
	src="${APP_PATH }/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
</head>
<body>
	<!-- 员工修改的模态框 -->
	<div class="modal fade" id="empUpdateModal" tabindex="-1" role="dialog"
		aria-labelledby="myModalLabel">
		<div class="modal-dialog" role="document">
			<div class="modal-content">
				<div class="modal-header">
					<button type="button" class="close" data-dismiss="modal"
						aria-label="Close">
						<span aria-hidden="true">&times;</span>
					</button>
					<h4 class="modal-title">员工修改</h4>
				</div>
				<div class="modal-body">
					<form class="form-horizontal">
						<div class="form-group">
							<label class="col-sm-2 control-label">empName</label>
							<div class="col-sm-10">
								<p class="form-control-static" id="empName_update_static"></p>
									<span class="help-block"></span>
							</div>
						</div>
						<div class="form-group">
							<label class="col-sm-2 control-label">email</label>
							<div class="col-sm-10">
								<input type="text" name="emil" class="form-control"
									id="email_update_input" placeholder="email@chy.xmy">
									<span class="help-block"></span>
							</div>
						</div>
						<div class="form-group">
							<label class="col-sm-2 control-label">gender</label>
							<div class="col-sm-10">
								<label class="radio-inline"> <input type="radio"
									name="gender" id="gendere1_update_input" value="M" checked="checked"> 男
								</label> <label class="radio-inline"> <input type="radio"
									name="gender" id="gendere2_update_input" value="F"> 女
								</label>
							</div>
						</div>
						<div class="form-group">
							<label class="col-sm-2 control-label">deptName</label>
							<div class="col-sm-4">
								<!-- 部门提交部门id即可 -->
								<select class="form-control" name="dId"></select>
							</div>
						</div>
					</form>
				</div>
				<div class="modal-footer">
					<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
					<button type="button" class="btn btn-primary" id="emp_update_btn">更新</button>
				</div>
			</div>
		</div>
	</div>

	<!-- 员工添加的模态框 -->
	<div class="modal fade" id="empAddModal" tabindex="-1" role="dialog"
		aria-labelledby="myModalLabel">
		<div class="modal-dialog" role="document">
			<div class="modal-content">
				<div class="modal-header">
					<button type="button" class="close" data-dismiss="modal"
						aria-label="Close">
						<span aria-hidden="true">&times;</span>
					</button>
					<h4 class="modal-title" id="myModalLabel">员工添加</h4>
				</div>
				<div class="modal-body">
					<form class="form-horizontal">
						<div class="form-group">
							<label class="col-sm-2 control-label">empName</label>
							<div class="col-sm-10">
								<input type="text" name="empName" class="form-control"
									id="empName_add_input" placeholder="empName">
									<span class="help-block"></span>
							</div>
						</div>
						<div class="form-group">
							<label class="col-sm-2 control-label">email</label>
							<div class="col-sm-10">
								<input type="text" name="emil" class="form-control"
									id="email_add_input" placeholder="email@chy.xmy">
									<span class="help-block"></span>
							</div>
						</div>
						<div class="form-group">
							<label class="col-sm-2 control-label">gender</label>
							<div class="col-sm-10">
								<label class="radio-inline"> <input type="radio"
									name="gender" id="gendere1_add_input" value="M" checked="checked"> 男
								</label> <label class="radio-inline"> <input type="radio"
									name="gender" id="gendere2_add_input" value="F"> 女
								</label>
							</div>
						</div>
						<div class="form-group">
							<label class="col-sm-2 control-label">deptName</label>
							<div class="col-sm-4">
								<!-- 部门提交部门id即可 -->
								<select class="form-control" name="dId"></select>
							</div>
						</div>
					</form>
				</div>
				<div class="modal-footer">
					<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
					<button type="button" class="btn btn-primary" id="emp_save_btn">保存</button>
				</div>
			</div>
		</div>
	</div>

	<!-- 搭建显示页面 -->
	<div class="container">
		<!-- 标题 -->
		<div class="row">
			<div class="col-md-12">
				<h1>陈园--CRUD</h1>
			</div>
		</div>
		<!-- 按钮 -->
		<div class="row">
			<div class="col-md-4 col-md-offset-8">
				<button class="btn btn-primary" id="emp_add_modal_btn">新增</button>
				<button class="btn btn-danger" id="emp_delete_modal_btn">删除</button>
			</div>
		</div>
		<!-- 显示表格数据 -->
		<div class="row">
			<div class="col-md-12">
				<table class="table table-hover" id="emps_table">
					<thead>
						<tr>
							<th>
								<input type="checkbox" id="check_all"/>
							</th>
							<th>id</th>
							<th>用户名</th>
							<th>性别</th>
							<th>邮箱</th>
							<th>部门</th>
							<th>操作</th>
						</tr>
					</thead>
					<tbody>

					</tbody>
				</table>
			</div>

		</div>
		<!-- 显示分页信息 -->
		<div class="row">
			<!-- 分页信息 -->
			<div class="col-md-6" id="page_info_area"></div>
			<!-- 分页条信息 -->
			<div class="col-md-6" id="page_nav_area"></div>
		</div>
	</div>
	<script type="text/javascript">
		var totalRecord;
		var currentPage;
		//页面加载完成以后，直接去发送一个ajax请求，要到分页数据
		$(function() {
			to_page(1);
		});

		function to_page(pn) {
			$.ajax({
				url : "${APP_PATH}/emps",
				data : "pn=" + pn,
				type : "GET",
				success : function(result) {
					//console.log(result);
					//1、解析并显示员工数据
					build_emps_table(result);
					//2、解析并显示分页信息
					build_page_info(result);
					//3、解析并显示分页条数据
					build_page_nav(result);
				}
			});
		}

		/* 显示员工数据 */
		function build_emps_table(result) {
			//清空table表格
			$("#emps_table tbody").empty();
			var emps = result.extend.PageInfo.list;
			$.each(emps, function(index, item) {
				var checkBoxTd = $("<td><input type='checkbox' class='check_item'/></td>");
				var empIdId = $("<td></td>").append(item.empId);
				var empNameId = $("<td></td>").append(item.empName);
				var gender = $("<td></td>").append(
						item.gender == 'M' ? "男" : "女");
				var emailId = $("<td></td>").append(item.emil);
				var deptNameId = $("<td></td>")
						.append(item.department.deptName);
				var editBtn = $("<button></button>").addClass(
						"btn btn-success btn-sm edit_btn").append(
						$("<span></span>").addClass(
								"glyphicon glyphicon-pencil").append("编辑"));
				//为编辑按钮添加一个自定义的属性，来表示当前员工id
				editBtn.attr("edit-id",item.empId);
				var delBtn = $("<button></button>").addClass(
						"btn btn-danger btn-sm delete_btn").append(
						$("<span></span>")
								.addClass("glyphicon glyphicon-trash").append(
										"删除"));
				//为删除按钮添加一个自定义的属性，来表示当前员工id
				delBtn.attr("del-id",item.empId);
				var btnId = $("<td></td>").append(editBtn).append(" ").append(
						delBtn);
				//append方法执行完成以后还是返回原来的元素
				$("<tr></tr>").append(checkBoxTd).append(empIdId).append(empNameId).append(gender)
						.append(emailId).append(deptNameId).append(btnId)
						.appendTo("#emps_table tbody");
			});
		}
		/* 显示分页信息 */
		function build_page_info(result) {
			$("#page_info_area").empty();
			$("#page_info_area").append(
					"当前第" + result.extend.PageInfo.pageNum + "页，共"
							+ result.extend.PageInfo.pages + "页,共有"
							+ result.extend.PageInfo.total + "条记录");
			totalRecord = result.extend.PageInfo.total;
			currentPage = result.extend.PageInfo.pageNum;
		}
		/* 显示分页条数据,点击分页要能去下一页 */
		function build_page_nav(result) {
			$("#page_nav_area").empty();
			var ul = $("<ul></ul>").addClass("pagination");
			var firstPageLi = $("<li></li>").append(
					$("<a></a>").append("首页").attr("href", "#"));
			var prePageLi = $("<li></li>").append(
					$("<a></a>").append("&laquo;"));
			if (result.extend.PageInfo.hasPreviousPage == false) {
				firstPageLi.addClass("disabled");
				prePageLi.addClass("disabled");
			} else {
				//为元素添加点击翻页的事件
				//去首页
				firstPageLi.click(function() {
					to_page(1);
				});
				//上一页
				prePageLi.click(function() {
					to_page(result.extend.PageInfo.pageNum - 1);
				});
			}

			var nextPageLi = $("<li></li>").append(
					$("<a></a>").append("&raquo;"));
			var lastPageLi = $("<li></li>").append(
					$("<a></a>").append("末页").attr("href", "#"));
			if (result.extend.PageInfo.hasNextPage == false) {
				nextPageLi.addClass("disabled");
				lastPageLi.addClass("disabled");
			} else {
				//去末页
				lastPageLi.click(function() {
					to_page(result.extend.PageInfo.pages);
				});
				//下一页
				nextPageLi.click(function() {
					to_page(result.extend.PageInfo.pageNum + 1);
				});
			}

			//添加首页和前一页的提示
			ul.append(firstPageLi).append(prePageLi);
			$.each(result.extend.PageInfo.navigatepageNums, function(index,
					item) {
				var numLi = $("<li></li>").append($("<a></a>").append(item));
				if (result.extend.PageInfo.pageNum == item) {
					numLi.addClass("active");
				}
				numLi.click(function() {
					to_page(item);
				});
				ul.append(numLi);
			});
			//添加下一页和末页的提示
			ul.append(nextPageLi).append(lastPageLi);
			//把ul加入到nav
			var navEle = $("<nav></nav>").append(ul);
			navEle.appendTo("#page_nav_area");
		}
		
		//清空表单样式及内容
		function reset_form(ele) {
			$(ele)[0].reset();
			$(ele).find("*").removeClass("has-success has-error");
			$(ele).find(".help-block").text("");
		}
		//点击新增按钮弹出模态框
		$("#emp_add_modal_btn").click(function() {
			//清除表单数据
			reset_form("#empAddModal form");
			//发送ajax请求，查出部门信息，显示在下拉列表中
			getDepts("#empAddModal select");
			//弹出模态框
			$("#empAddModal").modal({
				backdrop : "static"
			});
		});
		//查出所有的部门信息并显示在下拉列表中
		function getDepts(ele) {
			//清空下拉列表数据
			$(ele).empty();
			$.ajax({
				url:"${APP_PATH}/depts",
				type:"GET",
				success:function(result){
					//清空
					$.each(result.extend.depts,function(){
						var optionEle = $("<option></option>").append(this.deptName).attr("value",this.deptId);
						optionEle.appendTo(ele);
					});
				}
			});
		}
		
		//校验表单数据
		function validate_add_form() {
			//校验用户名信息
			var empName = $("#empName_add_input").val();
			var regName = /(^[a-zA-Z0-9_-]{4,16}$)|(^[\u2E80-\u9FFF]{2,6})/;
			if(!regName.test(empName)){
				//alert("用户名必须是4-16英文和数字的组合或2-6位中文");
				show_validate_msg("#empName_add_input","error","用户名必须是4-16英文和数字的组合或2-6位中文");
				return false;
			}else{
				show_validate_msg("#empName_add_input","success","");
			};
			//校验邮箱信息
			var email = $("#email_add_input").val();
			var regEmail = /^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$/;
			if(!regEmail.test(email)){
				//alert("邮箱格式不正确");
				show_validate_msg("#email_add_input","error","邮箱格式不正确");
				return false;
			}else{
				show_validate_msg("#email_add_input","success","");
			};
			return true;
		}
		
		//显示校验结果的提示信息
		function show_validate_msg(ele,status,msg) {
			//清除当前校验状态
			$(ele).parent().removeClass("has-success has-error");
			$(ele).next("span").text("");
			if("success" == status){
				$(ele).parent().addClass("has-success");
				$(ele).next("span").text(msg);
			}else if("error" == status){
				$(ele).parent().addClass("has-error");
				$(ele).next("span").text(msg);
			}
		}
		
		//校验用户名是否可用
		$("#empName_add_input").change(function() {
			//发送ajax请求，来校验用户名是否可用
			var empName = this.value;
			$.ajax({
				url:"${APP_PATH}/checkuser",
				data:"empName="+empName,
				type:"POST",
				success:function(result){
					if(result.code == 100){
						show_validate_msg("#empName_add_input","success","用户名可用");
						$("#emp_save_btn").attr("ajax-va","success");
					}else{
						show_validate_msg("#empName_add_input","error",result.extend.va_msg);
						$("#emp_save_btn").attr("ajax-va","error");
					}
				}
			});
		});
		$("#emp_save_btn").click(function(){
			//1.模态框中填写表单数据提交给服务器进行保存
			//1.1、先对要提交给服务器的数据进行校验
			if(!validate_add_form()){
				return true;
			};
			//判断之前的ajax用户名校验是否成功
			if($(this).attr("ajax-va") == "error"){
				return false;
			}
			//2.发送ajax请求保存员工
			$.ajax({
				url:"${APP_PATH}/emp",
				type:"POST",
				data:$("#empAddModal form").serialize(),
				success:function(result){
					//alert(result.msg);
					if(result.code == 100){
						//员工保存成功
						//1.关闭模态框
						$("#empAddModal").modal('hide');
						//2.来到最后一页，显示刚才保存的数据
						to_page(totalRecord);
					}else{
						//显示失败信息
						//console.log(result);
						if(undefined != result.extend.errorFields.emil){
							//显示邮箱错误信息
							show_validate_msg("#email_add_input","error",result.extend.errorFields.emil);
						}
						if(undefined != result.extend.errorFields.empName){
							//显示用户名错误信息
							show_validate_msg("#empName_add_input","error",result.extend.errorFields.empName);
						}
					}
					
				}
			});
		});
		
		$(document).on("click",".edit_btn",function() {
			reset_form("#empUpdateModal form");
			//1.查出员工信息，显示员工信息
			getEmp($(this).attr("edit-id"));
			//把员工的id传递给模态框的更新按钮
			$("#emp_update_btn").attr("edit-id",$(this).attr("edit-id"));
			//2.查出部门信息，并显示部门列表
			getDepts("#empUpdateModal select");
			$("#empUpdateModal").modal({
				backdrop : "static"
			});
		});
		//查出员工信息，显示员工信息
		function getEmp(id) {
			$.ajax({
				url:"${APP_PATH}/emp/"+id,
				type:"GET",
				success:function(result){
					var empData = result.extend.emp;
					$("#empName_update_static").text(empData.empName);
					$("#email_update_input").val(empData.emil);
					$("#empUpdateModal input[name=gender]").val([empData.gender]);
					$("#empUpdateModal select").val([empData.dId]);
				}
			});
		}
		
		//点击更新按钮，更新员工信息
		$("#emp_update_btn").click(function() {
			//验证邮箱信息是否合法
			//校验邮箱信息
			var email = $("#email_update_input").val();
			var regEmail = /^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$/;
			if(!regEmail.test(email)){
				//alert("邮箱格式不正确");
				show_validate_msg("#email_update_input","error","邮箱格式不正确");
				return false;
			}else{
				show_validate_msg("#email_update_input","success","");
			};
			
			//发送ajax请求保存更新的员工数据
			$.ajax({
				url:"${APP_PATH}/emp/"+$(this).attr("edit-id"),
				type:"POST",
				data:$("#empUpdateModal form").serialize()+"&_method=PUT",
				success:function(result){
					alert(result.msg);
					//关闭对话框
					$("#empUpdateModal").modal("hide");
					//回到本页面
					to_page(currentPage);
				}
			});
		});
		//单个删除
		$(document).on("click",".delete_btn",function() {
			var empName = $(this).parents("tr").find("td:eq(2)").text();
			var empId = $(this).attr("del-id");
			//弹出是否确认删除对话框
			if(confirm("确认删除吗【"+empName+"】吗？")){
				$.ajax({
					url:"${APP_PATH}/emp/"+empId,
					type:"POST",
					success:function(result){
						alert(result.msg);
						//回到本页面
						to_page(currentPage);
					}
				});
			}
		});
		
		//完成全选、全不选
		$("#check_all").click(function() {
			//attr获取checked是undefined
			$(".check_item").prop("checked",$(this).prop("checked"));
		});
		$(document).on("click",".check_item",function() {
			var flag = $(".check_item:checked").length == $(".check_item").length
			$("#check_all").prop("checked",flag);
		});
		
		//点击全部删除，批量删除
		$("#emp_delete_modal_btn").click(function() {
			var empNames = "";
			var del_idstr = "";
			$.each($(".check_item:checked"),function(){
				empNames += $(this).parents("tr").find("td:eq(2)").text()+",";
				del_idstr += $(this).parents("tr").find("td:eq(1)").text()+"-";
			});
			//去除empName多余的“，”
			empNames = empNames.substring(0,empNames.length-1);
			//去除删除id的多余的“，”
			del_idstr = del_idstr.substring(0,del_idstr.length-1);
			if(confirm("确认删除吗【"+empNames+"】吗？")){
				$.ajax({
					url:"${APP_PATH}/emp/"+del_idstr,
					type:"POST",
					success:function(result){
						alert(result.msg);
						//回到本页面
						to_page(currentPage);
					}
				});
			}
		});
	</script>
</body>
</html>